CN114069744A

CN114069744A - Intelligent charging method and device and storage medium

Info

Publication number: CN114069744A
Application number: CN202010780467.8A
Authority: CN
Inventors: 张金龙
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2022-02-18

Abstract

The present disclosure provides an intelligent charging method, device and storage medium. The method includes: when the battery is in a charging state, detecting a current value of a state characterization parameter of the battery; determining a charging strategy according to the current value of the state characterization parameter; The battery is charged with the charging current of the charging strategy. In the present disclosure, different charging strategies are determined according to various state characterization parameters, the charging strategy is adjusted in real time according to the changes of the state characterization parameters, and a more reasonable charging strategy that conforms to this state is used for charging in different charging states, so as to improve the charging of the battery. Speed while ensuring charging safety.

Description

Intelligent charging method and device and storage medium

Technical Field

The present disclosure relates to the field of battery charging technologies, and in particular, to an intelligent charging method, an intelligent charging device, and a storage medium.

Background

In the electronic products in the market at present, the same charging strategy is used in the whole life cycle of the battery, the control condition of the charging current is set to be single, the performance of the battery cannot be fully exerted, the service life of the battery is influenced, and certain safety risk exists.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides an intelligent charging method, apparatus, and storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided an intelligent charging method, including:

detecting the current value of the state representation parameter of the battery when the battery is in a charging state;

determining a charging strategy according to the current value of the state characterization parameter;

charging the battery using a charging current that conforms to the charging strategy.

In one embodiment, the state characterizing parameter is one or a combination of:

voltage, health, battery temperature.

In an embodiment, the charging current conforming to the charging strategy is specifically:

a charging current equal to a current value indicated in the charging strategy; or

A charging current in a range of current values indicated in the charging strategy; or

A charging current determined by at least one state characterizing parameter.

In one embodiment, the determining a charging strategy according to the current value of the state characterizing parameter includes:

determining a target state characterization parameter, wherein the target state characterization parameter is a state characterization parameter corresponding to a set value interval in a mapping relation;

determining a set value interval to which the current value of the state representation parameter belongs, and inquiring a charging strategy corresponding to the set value interval according to the mapping relation; the mapping relation is a one-to-one mapping relation between a set value interval of at least one state representation parameter and a charging strategy.

In an embodiment, when the mapping relationship includes a set value interval of the voltage, a characteristic value of the set value interval of the voltage is negatively correlated with a current value in a charging strategy corresponding to the set value interval;

when the mapping relation comprises a set value interval of the health degree, the representation value of the set value interval of the health degree is positively correlated with the current value in the charging strategy corresponding to the set value interval;

when the mapping relation comprises a target interval of the battery temperature, the current value in the charging strategy corresponding to the target interval of the battery temperature is larger than the current value in the charging strategy corresponding to any set value interval except the target interval; the target interval is one of the set value intervals of the battery temperature, and the target interval is one of all the set value intervals of the battery temperature except for the end interval.

In an embodiment, when the mapping relationship includes a set value interval of the voltage, a current value in the charging strategy corresponding to at least one set value interval of the voltage is a fixed current value, a current value range, or an output value of a set relationship negatively correlated with the voltage;

when the mapping relation comprises a set value interval of the health degree, the current value in the charging strategy corresponding to at least one set value interval of the health degree is a fixed current value, a current value range or an output value of the set relation positively correlated with the health degree;

when the mapping relation comprises a target interval of the battery temperature, the current information in the charging strategy corresponding to at least one set value interval of the battery temperature is a fixed current value or a current value range, or the current value in the charging strategy in the set value interval smaller than the target interval is positively correlated with the battery temperature, and the current value in the charging strategy in the set value interval larger than the target interval is negatively correlated with the battery temperature; the characteristic value of the target interval is a middle value in the characteristic values of all the set value intervals.

and determining a current value according to the current value of the state characterization parameter and the set relation, and taking the current value as a charging strategy.

In one embodiment, when the state characterizing parameter comprises a voltage, the voltage is inversely related to the current value;

when the state characterization parameter comprises a health degree, the health degree is in positive correlation with the current value;

when the state characterization parameter comprises the battery temperature and the battery temperature is in a target interval in a set value interval, the determined current value is larger than the current value determined when the battery temperature is in the set value interval except the target interval.

According to a second aspect of the embodiments of the present disclosure, there is provided an intelligent charging device, including:

the detection module is configured to detect the current value of the state representation parameter of the battery when the battery is in a charging state;

a first determination module configured to determine a charging strategy from the current value of the state characterizing parameter;

a charging module configured to charge the battery using a charging current that conforms to the charging strategy.

voltage, health, battery temperature.

A charging current determined by at least one state characterizing parameter.

In an embodiment, the first determination module is further configured to determine the charging strategy from the current value of the state characterizing parameter using the following method:

determining a set value interval to which the current value of the state representation parameter belongs, and inquiring a charging strategy corresponding to the set value interval according to the mapping relation;

the mapping relation is a one-to-one mapping relation between a set value interval of at least one state representation parameter and a charging strategy.

In one embodiment, the apparatus further comprises:

the first determination module is further configured to determine a charging strategy from the current value of the state characterizing parameter using the following method:

According to a third aspect of the embodiments of the present disclosure, there is provided an intelligent charging device, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the method.

According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform the method.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: different charging strategies are determined according to various state characterization parameters, the charging strategies are adjusted in real time according to changes of the state characterization parameters, more reasonable charging strategies meeting the state are used for charging in different charging states, the charging speed of the battery is improved, and meanwhile charging safety is guaranteed.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a flow chart illustrating a smart charging method in accordance with an exemplary embodiment;

FIG. 2 is a block diagram of an intelligent charging device according to an exemplary embodiment;

fig. 3 is a block diagram illustrating an intelligent charging device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The embodiment of the disclosure provides an intelligent charging method. Referring to fig. 1, fig. 1 is a flow chart illustrating a smart charging method according to an exemplary embodiment. As shown in fig. 1, the method includes:

step S11, when the battery is in the charging state, the current value of the state representation parameter of the battery is detected;

and step S12, determining a charging strategy according to the current value of the state characterization parameter.

And step S13, charging the battery by using the charging current conforming to the charging strategy.

In one embodiment, the state characterizing parameter is one or a combination of: voltage, Health (Status of Health), battery temperature. The state characterizing parameter may include only one of voltage, health level and battery temperature, or may include more than one of them or even all of them.

The current value indicated in the charging strategy may be a fixed current value to simplify the control manner, or a current value range to facilitate adjustment and control of the charging current, or a charging current determined by at least one state characterizing parameter, for example, an output value of a current calculating function related to at least one state characterizing parameter, to ensure that the battery is charged in an optimal charging current state.

In one embodiment, the charging current according to the charging strategy is specifically:

A charging current determined by at least one state characterizing parameter.

In the embodiment, different charging strategies are determined according to various state characterization parameters, the charging strategies are adjusted in real time according to the change of the state characterization parameters, and more reasonable charging strategies meeting the state are used for charging in different charging states, so that the charging speed of the battery is improved, and the charging safety is ensured.

An intelligent charging method is provided in the disclosed embodiment, the method comprising the method shown in fig. 1, and,

in step S12, determining a charging strategy according to the current value of the state characterizing parameter includes: determining a target state characterization parameter, wherein the target state characterization parameter is a state characterization parameter corresponding to a set value interval in a mapping relation; and determining a set value interval to which the current value of the state representation parameter belongs, and inquiring a charging strategy corresponding to the set value interval according to the mapping relation.

In an embodiment, before step S12, the intelligent charging method further includes: and setting a plurality of mapping relations, wherein the mapping relations are one-to-one mapping relations between the set value interval of at least one state representation parameter and the charging strategy.

The number of the setting value intervals of any state characterizing parameter is a settable value, for example, the number of the setting value intervals of a state characterizing parameter is 2, 3, 4 or 5, and other values. The division mode of each set value interval can be divided differently according to the attribute of the battery.

When setting the value range, the following settings may be performed: and the set value intervals of the same state representation parameters do not have intersection.

In an embodiment, when the mapping relationship includes a set value interval of the voltage, a characteristic value of the set value interval of the voltage is negatively correlated with a current value in the charging strategy corresponding to the set value interval. Therefore, when the voltage of the battery is low, the battery is charged by using large current, and when the voltage of the battery is high, the battery is charged by using low current, so that the charging speed is increased, and the charging safety is ensured.

Specifically, the method comprises the following steps: when the set value interval in the mapping relation comprises the set value interval of the voltage, the representation value of the set value interval of the voltage is in negative correlation with the current value in the charging strategy corresponding to the set value interval.

When the set value interval in the mapping relation includes the set value interval of the voltage and the set value intervals of other state representation parameters, in the set value interval of the voltage corresponding to the set value interval of each group of other state representation parameters, the representation value of the set value interval of the voltage is in negative correlation with the current value in the charging strategy corresponding to the set value interval.

The current value in the charging strategy corresponding to at least one set value interval of the voltage in the mapping relation is a fixed current value, a current value range or an output value of a set relation (such as a functional relation) which is in negative correlation with the voltage.

In the case where the state characterizing parameter includes only a voltage, the description will be given by examples 1, 2, 3, and 4.

Example 1:

the state characterization parameters comprise voltage, and the mapping relation comprises a one-to-one mapping relation between a set value interval of the voltage and a fixed current value.

For example, as shown in table 1, the set value interval of the voltage includes three intervals, each being V₁＜V≤V₂，V₂＜V≤V₃，V₃＜V≤V₄Each interval corresponds to a charging strategy in which a fixed current value is indicated.

TABLE 1

V₁＜V≤V₂	V₂＜V≤V₃	V₃＜V≤V₄
			I₁	I₂	I₃

Determining the set value interval to which the current value of the voltage belongs as V₁＜V≤V₂Determining the current value corresponding to the set value interval as I according to the mapping relation₁Using a current value of I₁The charging current of (2) to charge.

Determining the set value interval to which the current value of the voltage belongs as V₂＜V≤V₃Determining the current value corresponding to the set value interval as I according to the mapping relation₂Using a current value of I₂The charging current of (2) to charge.

Determining the set value interval to which the current value of the voltage belongs as V₃＜V≤V₄Determining the current value corresponding to the set value interval as I according to the mapping relation₃Using a current value of I₃The charging current of (2) to charge.

And the representation value of the set value interval of the voltage in the mapping relation is in negative correlation with the charging current value in the charging strategy corresponding to the set value interval. The representation value of the set value interval is a value used for representing the set value interval, and the representation value is a value in the corresponding interval, for example, the representation is a middle point, a left end point or a right end point of the corresponding interval.

In Table 1, V₁、V₂、V₃、V₄When the characteristic value of the set value interval is the middle value of the characteristic value of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (V)₁+V₂)/2，(V₂+V₃)/2，(V₃+V₄) And/2, as the three characteristic values are increased in sequence, corresponding three current values I₁、I₂、I₃And decreases in sequence.

Example 2:

the mapping relationship comprises a one-to-one mapping relationship between a set value interval of the voltage and a current value range.

For example, as shown in table 2, the set value interval of the voltage includes three intervals, each being V₁＜V≤V₂，V₂＜V≤V₃，V₃＜V≤V₄Each interval corresponds to a range of current values.

TABLE 2

V₁＜V≤V₂	V₂＜V≤V₃	V₃＜V≤V₄
			I₁＜I≤I₂	I₂＜I≤I₃	I₃＜I≤I₄

When the charging strategy is determined, the set value interval to which the current value of the voltage belongs is determined to be V₁＜V≤V₂Determining the current value range corresponding to the set value interval as I according to the mapping relation₁＜I≤I₂The charging is performed using a charging current having a current value within this interval. Similarly, when the set value interval to which the current value of the voltage belongs is determined to be other set value intervals, the current value range corresponding to the other set value intervals is determined according to the mapping relation, and the charging current with the current value of any value in the interval is used for charging.

In Table 2, V₁、V₂、V₃、V₄Are successively increased by the value of I₁、I₂、I₃、I₄The values of (a) and (b) decrease in sequence. When the characteristic value of the set value interval is the middle value of the characteristic values of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (V)₁+V₂)/2，(V₂+V₃)/2，(V₃+V₄) And/2, as the three characteristic values increase sequentially, corresponding three characteristic values (I) of the current value range₁+I₂)/2，(I₂+I₃)/2，(I₃+I₄) And/2 decreases in sequence.

In one embodiment, any two of the three set value ranges of the voltage have no intersection, and any two of the corresponding three current value ranges have no intersection.

Example 3:

the mapping relation comprises a one-to-one mapping relation between a set value interval of the voltage and a current value calculation function, and the current value calculation function is in negative correlation with the voltage.

For example, as shown in table 3, the state characterizing parameter includes a voltage, and the set value interval of the voltage includes three intervals, respectively V₁＜V≤V₂，V₂＜V≤V₃，V₃＜V≤V₄Each interval corresponds to a current value calculation function.

TABLE 3

V₁＜V≤V₂	V₂＜V≤V₃	V₃＜V≤V₄
			f₁(V)	f₂(V)	f₃(V)

Wherein f is₁，f₂，f₃Are all functions that are inversely related to V. The charging current value in the charging strategy in each set value interval of the voltage is in negative correlation with the voltage.

When the charging strategy is determined, the set value interval to which the current value of the voltage belongs is determined to be V₁＜V≤V₂Determining the calculation function f corresponding to the set value interval according to the mapping relation₁And (V) calculating a current value according to the calculation function and the current value of the voltage, and charging by using a charging current satisfying the current value. Similarly, the usage of other set value intervals is similar to that described above.

In Table 3, V₁、V₂、V₃、V₄When the characteristic value of the set value interval is the middle value of the characteristic value of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (V)₁+V₂)/2，(V₂+V₃)/2，(V₃+V₄) And/2, as the three characteristic values sequentially increase, the current values corresponding to the corresponding three calculation functions sequentially decrease.

Example 4:

the charging current value in the charging strategy in at least one set value interval of the voltage in the mapping relation is a fixed value, a current value range or an output value of a function which is in negative correlation with the voltage.

For example, as shown in table 4:

TABLE 4

V₁＜V≤V₂	V₂＜V≤V₃	V₃＜V≤V₄
			I₁	I₃＜I≤I₂	f₄(V)

The current value modes corresponding to different set value intervals of the voltage are different, the first set value interval corresponds to a fixed current value, the second set value interval corresponds to a current value range, and the third set value interval corresponds to a calculation function. f. of₄Is a function that is inversely related to V.

Wherein, I₂Has a value of less than I₁，I₃Has a value of less than I₂The value at V is located at V₃To V₄In interval, f₄All values of (V) are less than I₃. Thus, with V₁、V₂、V₃When the characteristic value of the set value interval is the middle value of the characteristic value of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (V)₁+V₂)/2，(V₂+V₃)/2，(V₃+V₄) And/2, as the three characteristic values are sequentially increased, the corresponding current values are sequentially reduced.

In an embodiment, when the mapping relationship includes a set value interval of the health degree, the characteristic value of the set value interval of the SOH is in positive correlation with the charging current value in the charging strategy corresponding to the set value interval. Therefore, when the SOH of the battery is large, large current is used for charging, and when the voltage of the battery is small, small current is used for charging, so that the charging speed is increased, and meanwhile, the charging safety is guaranteed.

Specifically, the method comprises the following steps: when the set value interval in the mapping relation only comprises the set value interval of the SOH, the characteristic value of the set value interval of the SOH is in positive correlation with the current value in the charging strategy corresponding to the set value interval.

When the set value interval in the mapping relation includes the set value interval of the SOH and the set value intervals of other state representation parameters, in the set value interval of the SOH corresponding to the set value interval of each group of other state representation parameters, the representation value of the set value interval of the SOH is in positive correlation with the current value in the charging strategy corresponding to the set value interval.

In the case where the state characterizing parameter includes only SOH, the description will be given by way of examples 5, 6, 7, and 8.

Example 5:

the mapping relationship comprises a one-to-one mapping relationship between a set value interval of the SOH and the fixed current value.

For example, as shown in table 5, the set value interval of SOH includes three intervals, i.e., SOH1 < SOH ≦ SOH2, SOH2 < SOH ≦ SOH3, and SOH3 < SOH ≦ SOH4, where each interval corresponds to a charging strategy, and the charging strategy indicates a fixed current value.

TABLE 5

0＜SOH≤SOH1	SOH1＜SOH≤SOH2	SOH2＜SOH＜100％
			I₄	I₅	I₆

The values of SOH1 and SOH2 increase in sequence, for example, SOH1 is 70% and SOH2 is 90%. When the characteristic value of the set value interval is the middle value of the characteristic values of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (SOH 1)/2, (SOH 1+ SOH 2)/2, (SOH 2+ 100%)/2 corresponding to the three current values I as the three characteristic values are sequentially increased₄、I₅、I₆And sequentially increased.

Example 6:

the mapping relationship comprises a one-to-one mapping relationship between the set value interval of the SOH and the current value range.

For example, as shown in table 6:

TABLE 6

The values of SOH1 and SOH2 increase in sequence, for example, SOH1 is 70% and SOH2 is 90%. When the characteristic value of the set value interval is the middle value of the characteristic values of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (SOH 1)/2, (SOH 1+ SOH 2)/2, (SOH 2+ 100%)/2 with the successive increase of these three characteristic values, the corresponding characteristic values (I) of the three current value ranges₄+I₅)/2，(I₅+I₆)/2，(I₆+I₇) And/2 are increased in sequence. Any two set value intervals in three set value intervals of the SOH have no intersection, and the corresponding three current value rangesThere is no intersection between any two current value ranges.

Example 7:

the mapping relation comprises a one-to-one mapping relation between a set value interval of the SOH and a current value calculation function, and the current value calculation function is in positive correlation with the SOH.

For example, as shown in table 7:

TABLE 7

0＜SOH≤SOH1	SOH1＜SOH≤SOH2	SOH2＜SOH＜100％
			f₅(SOH)	f₆(SOH)	f₇(SOH)

Wherein f is₅，f₅，f₇Are all functions that are positively correlated with SOH. The current value in the charging strategy in each set value interval of the SOH is in positive correlation with the SOH. E.g. f₅，f₅，f₇Are all proportional functions of SOH.

The values of SOH1 and SOH2 increase in sequence, for example, SOH1 is 70% and SOH2 is 90%. When the characteristic value of the set value interval is the middle value of the characteristic values of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (SOH 1)/2, (SOH 1+ SOH 2)/2, (SOH 2+ 100%)/2 with the sequential increase of the three characteristic values, the output values of the corresponding three functions sequentially increase. Any two set value intervals in the three set value intervals of the SOH have no intersection, and any two output value intervals in the output value intervals of the corresponding three current function values have no intersection.

Example 8:

the charging current value in the charging strategy in at least one set value interval of the SOH in the mapping relation is a fixed value, a current value range or an output value of a function which is positively correlated with the voltage.

For example, as shown in table 8:

TABLE 8

0＜SOH≤SOH1	SOH1＜SOH≤SOH2	SOH2＜SOH＜100％
			I₈	I₉*f₈(SOH)	I₁₀＜I≤I₁₁

The different set value intervals of the SOH correspond to different current value modes, the first set value interval corresponds to a fixed current value, the second set value interval corresponds to a current value calculation function, and the third set value interval corresponds to a fixed current value. f. of₈Is a function of positive correlation with SOH.

The values of SOH1 and SOH2 increase in sequence, for example, SOH1 is 70% and SOH2 is 90%. When the characteristic value of the set value interval is the middle value of the characteristic values of the set value interval, the corresponding three characteristic values of the corresponding three intervals are as follows: (SOH 1)/2, (SOH 1+ SOH 2)/2, (SOH 2+ 100%)/2 the corresponding current values increased with the successive increase in the three characteristic values.

For example:

when the health degree of the battery is greater than or equal to 90%, the health degree of the battery is good, the aging degree is low, the maximum charging current of the battery is limited to 4.5C, and the charging speed is increased; when the health degree of the battery is less than 90% and more than 70%, the health degree of the battery is better, the battery is slightly aged, the maximum charging is the product of a positive correlation function of 4.5C and the corresponding health degree, the charging current is reduced, and the service life of the battery is ensured; when the battery health is less than or equal to 70%, it indicates that the battery is severely aged, limiting the maximum charge of the battery to 1C. Where C represents one time the current of the battery capacity.

In one embodiment, when the mapping relationship includes a target interval of the battery temperature, a current value in the charging strategy corresponding to the target interval of the battery temperature is greater than a current value in the charging strategy corresponding to any set value interval except the target interval; the target interval is one of the set value intervals of the battery temperature, and the target interval is one of all the set value intervals of the battery temperature except for the end interval. Therefore, when the temperature of the battery is in the middle temperature, the charging speed is ensured, and when the temperature of the battery is in the low temperature or the high temperature, the charging safety is ensured.

When the state characterizing parameter includes only the battery temperature, examples 9, 10, 11, and 12 will be described.

Example 9:

the plurality of mapping relationships include a one-to-one mapping relationship between a set value interval of the battery temperature and the fixed current value.

For example, as shown in table 9:

TABLE 9

T₁＜T≤T₂	T₂＜T≤T₃	T₃＜T≤T₄	T₄＜T≤T₅
				I₁₂	I₁₃	I₁₄	I₁₅

T₁、T₂、T₃、T₄、T₅The values of (a) and (b) increase in sequence. T is₂To T₃The interval is a target interval, and the current value I corresponding to the target interval₁₃Is larger than the current value corresponding to any one of the other three temperature intervals.

Example 10:

the plurality of mapping relationships include a one-to-one mapping relationship between a set value interval of the battery temperature and a current value range.

For example, as shown in Table 10

Watch 10

T₁＜T≤T₂	T₂＜T≤T₃	T₃＜T≤T₄	T₄＜T≤T₅
				I₁₆＜I≤I₁₇	I₁₈＜I≤I₁₉	I₂₀＜I≤I₂₁	I₂₂＜I≤I₂₃

T₁、T₂、T₃、T₄The values of (a) and (b) increase in sequence. T is₂To T₃The interval is a target interval, and the current value range I corresponding to the target interval₁₈To I₁₉Any value in the interval is larger than any current value in the current value range corresponding to any temperature interval in the other three temperature intervals. I17, I21, I₂₃Are all less than I18.

Any two set value intervals in the four set value intervals have no intersection, and any two current value ranges in the corresponding four current value ranges have no intersection.

Example 11:

the plurality of mapping relations comprise a one-to-one mapping relation between a set value interval of the battery temperature and a current value calculation function, the charging current value in the charging strategy in the set value interval smaller than the target interval is positively correlated with the battery temperature, and the charging current value in the charging strategy in the set value interval larger than the target interval is negatively correlated with the battery temperature.

For example, as shown in table 11:

TABLE 11

T₁＜T≤T₂	T₂＜T≤T₃	T₃＜T≤T₄	T₄＜T≤T₅
				f₉(T)	f₁₀(T)	f₁₁(T)	f₁₂(T)

Wherein f is₉Is a function having a positive correlation with the battery temperature, f₁₁、f₁₂Is a function that is inversely related to the battery temperature. T is₂To T₃The interval is a target interval corresponding to f₁₀The function is at T at the battery temperature₂To T₃During the interval, any calculated output value is larger than any current value calculated when the battery temperature is in the corresponding current value range by the function corresponding to any temperature interval in other three temperature intervals.

Example 12:

the charging current value in the charging strategy in at least one set value interval of the battery temperature in the mapping relation is a fixed value, a current value range or an output value of a function related to the battery temperature.

For example, as shown in table 12:

TABLE 12

T₁＜T≤T₂	T₂＜T≤T₃	T₃＜T≤T₄	T₄＜T≤T₅
				f₁₃(T)	I₂₄	I₂₃＜I≤I₂₄	f₁₄(T)

The different set value intervals of the battery temperature correspond to different current value modes, the first set value interval corresponds to a function related to the battery temperature, the second set value interval corresponds to fixed electricity, and the third set value interval corresponds to a fixed current value range. The fourth set interval corresponds to a function related to the battery temperature.

T₂To T₃The interval is a target interval corresponding to I₂₁Is larger than the current value corresponding to any one of the other three temperature intervals.

In an embodiment, when the state characterizing parameters include more than one parameter, the state characterizing parameters corresponding to the set value intervals included in the mapping relationship are different from the related state characterizing parameters in the charging strategy included in the mapping relationship.

For example, as shown in table 13:

watch 13

V₁＜V≤V₂	V₂＜V≤V₃	V₃＜V≤V₄
			I₂₅*f₁₅(SOH)	I₂₆*f₁₅(SOH)	I₂₇*f₁₅(SOH)

The charging strategy for each voltage set point interval is a calculated function related to SOH.

In an embodiment, when the state characterizing parameters include more than one parameter, at least one state characterizing parameter corresponding to the set value interval included in the mapping relationship has the same state characterizing parameter as at least one state characterizing parameter related to the charging strategy included in the mapping relationship.

For example, as shown in table 14:

TABLE 14

Wherein, with the gradual increase of the voltage, I₂₈、I₂₉、I₃₀In order to reduce, I₃₁、I₃₂、I₃₃In order to reduce, I₃₄、I₃₅、I₃₆In order to reduce, I₂₈90% greater than I₂₈*70％，I₂₉90% greater than I₃₀*70％，I₃₁90% greater than I₃₂*70％，I₃₂90% greater than I₃₃*70％，I₃₄90% greater than I₃₅*70％，I₃₅90% greater than I₃₆*70％，I₃₇、I₃₈、I₃₉And decreases in sequence. Therefore, when the voltage of the battery is low, the battery is charged by using large current, and when the voltage of the battery is high, the battery is charged by using low current, so that the charging speed is increased, and the charging safety is ensured.

I₂₈70% greater than I₃₇，I₂₉70% greater than I₃₇，I₃₀70% greater than I₃₇。I₃₁70% greater than I₃₈，I₃₂70% greater than I₃₈，I₃₃70% greater than I₃₈。I₃₄70% greater than I₃₉，I₃₅70% greater than I₃₉，I₃₆70% greater than I₃₉. Therefore, when the SOH of the battery is large, large current is used for charging, and when the voltage of the battery is small, small current is used for charging, so that the charging speed is increased, and meanwhile, the charging safety is guaranteed.

I₃₁、I₃₂、I₃₃Is greater than I₂₈、I₂₉、I₃₀、I₃₄、I₃₅、I₃₆. And I₃₈Is greater than I₃₈And I_39。Therefore, when the temperature of the battery is in the middle temperature, the charging speed is ensured, and when the temperature of the battery is in the low temperature or the high temperature, the charging safety is ensured.

The above-described determinations of the voltage, temperature, and health level during charging may be performed sequentially or simultaneously. For example, the set value interval to which the voltage belongs may be determined according to the voltage, then the set value interval to which the temperature belongs may be determined according to the temperature, finally the set value interval to which the health degree belongs may be determined according to the health degree, and then the corresponding current value may be determined according to the mapping relationship. For example, the set value intervals corresponding to the voltage, the temperature and the health degree can be determined simultaneously, and then the corresponding current value can be determined according to the mapping relation.

In addition, the above examples of the correlation parameters in the embodiments are only for better illustration of the embodiments, and the correlation parameters between the embodiments are not related.

According to the mapping relation, the larger the detected voltage during charging is, the smaller the current value of the controlled charging current is; the larger the detected health degree of the battery during charging, the larger the current value of the charging current is controlled; when the detected temperature during charging is normal temperature (15-45 ℃), the current value of the controlled charging current is larger, and when the detected temperature during charging is lower than the normal temperature or higher than the normal temperature, the larger the temperature difference between the temperature and the normal temperature is, the smaller the current value of the controlled charging current is.

The embodiment of the present disclosure provides an intelligent charging method, which includes the method shown in fig. 1, and includes:

in step S12, determining a charging strategy according to the current value of the state characterizing parameter, including: and determining a current value according to the current value of the state characterization parameter and the set relation, and taking the current value as a charging strategy.

In one embodiment, step S12 is preceded by: and determining a set function, wherein the input parameters of the set function are a state characterization parameter set, and the output value of the calculation function is a current value.

In one embodiment, where the state characterising parameter comprises a voltage, the voltage is inversely related to the current value. Therefore, when the voltage of the battery is low, the battery is charged by using large current, and when the voltage of the battery is high, the battery is charged by using low current, so that the charging speed is increased, and the charging safety is ensured.

When the state characterizing parameter includes a health degree, the health degree is in positive correlation with the current value. Therefore, when the SOH of the battery is large, large current is used for charging, and when the voltage of the battery is small, small current is used for charging, so that the charging speed is increased, and meanwhile, the charging safety is guaranteed.

When the state characterization parameter comprises the battery temperature and the battery temperature is in a target interval in a set value interval, the determined current value is larger than the current value determined when the battery temperature is in the set value interval except the target interval. Therefore, when the temperature of the battery is in the middle temperature, the charging speed is ensured, and when the temperature of the battery is in the low temperature or the high temperature, the charging safety is ensured.

In an embodiment of the present disclosure, an intelligent charging device is provided, and referring to fig. 2, fig. 2 is a structural diagram of an intelligent charging device according to an exemplary embodiment. As shown in fig. 2, the apparatus includes:

a detection module 201 configured to detect a current value of a state characterizing parameter of the battery when the battery is in a charging state;

a first determination module 202 configured to determine a charging strategy according to the current value of the state characterizing parameter;

a charging module 203 configured to charge the battery using a charging current that complies with the charging strategy.

voltage, health, battery temperature.

A charging current determined by at least one state characterizing parameter.

In one embodiment, the apparatus further comprises:

The present disclosure also provides an intelligent charging device, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the method.

The present disclosure also provides a non-transitory computer readable storage medium having instructions that, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the method.

Fig. 3 is a block diagram illustrating an intelligent charging device 300 according to an example embodiment. For example, the apparatus 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 3, the apparatus 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and communication component 316.

The processing component 302 generally controls overall operation of the device 300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 302 may include one or more processors 320 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 302 can include one or more modules that facilitate interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate interaction between the multimedia component 308 and the processing component 302.

The memory 304 is configured to store various types of data to support operations at the device 300. Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 304 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 306 provides power to the various components of the device 300. The power components 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 300.

The multimedia component 308 includes a screen that provides an output interface between the device 300 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 308 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 300 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 310 is configured to output and/or input audio signals. For example, audio component 310 includes a Microphone (MIC) configured to receive external audio signals when apparatus 300 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 304 or transmitted via the communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.

The I/O interface 312 provides an interface between the processing component 302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 314 includes one or more sensors for providing various aspects of status assessment for the device 300. For example, sensor assembly 314 may detect an open/closed state of device 300, the relative positioning of components, such as a display and keypad of apparatus 300, the change in position of apparatus 300 or a component of apparatus 300, the presence or absence of user contact with apparatus 300, the orientation or acceleration/deceleration of apparatus 300, and the change in temperature of apparatus 300. Sensor assembly 314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 316 is configured to facilitate wired or wireless communication between the apparatus 300 and other devices. The device 300 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 304 comprising instructions, executable by the processor 320 of the apparatus 300 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. an intelligent charging method, is characterized in that, comprises:

When the battery is in a charged state, detect the current value of the battery's state characterization parameter;

Determine the charging strategy according to the current value of the state characterization parameter;

The battery is charged with a charging current consistent with the charging strategy.

2. The intelligent charging method according to claim 1, wherein the state characterization parameter is one or a combination of the following:

Voltage, health, battery temperature.

3. The intelligent charging method according to claim 1, wherein the charging current conforming to the charging strategy is specifically:

A charging current equal to the current value indicated in the charging strategy; or

a charging current in the range of current values indicated in the charging strategy; or

The charging current is determined by at least one state characterizing parameter.

4. The intelligent charging method according to claim 1, wherein the determining of the charging strategy according to the current value of the state characterization parameter comprises:

determining a target state characterization parameter, where the target state characterization parameter is a state characterization parameter corresponding to the set value interval in the mapping relationship;

Determine the set value interval to which the current value of the state representation parameter belongs, and query the charging strategy corresponding to the set value range according to the mapping relationship; the mapping relationship is the set value range of at least one state representation parameter One-to-one mapping relationship with charging strategy.

5. The intelligent charging method according to claim 4, wherein,

When the mapping relationship includes the set value interval of the voltage, the characteristic value of the set value interval of the voltage is negatively correlated with the current value in the charging strategy corresponding to the set value interval;

When the mapping relationship includes the set value interval of the health degree, the characteristic value of the set value interval of the health degree is positively correlated with the current value in the charging strategy corresponding to the set value interval;

When the target interval of the battery temperature is included in the mapping relationship, the current value in the charging strategy corresponding to the target interval of the battery temperature is greater than the current in the charging strategy corresponding to any set value interval except the target interval. value; the target interval is one of the set value intervals of the battery temperature, and the target interval is an interval except the end interval among all the set value intervals of the battery temperature.

6. The intelligent charging method according to claim 4 or 5, wherein,

When the mapping relationship includes a set value interval of the voltage, the current value in the charging strategy corresponding to at least one set value interval of the voltage is a fixed current value, a current value range or a setting that is negatively correlated with the voltage the output value of the relation;

When the mapping relationship includes a set value interval of the health degree, the current value in the charging strategy corresponding to at least one set value interval of the health degree is a fixed current value, a current value range, or a positive correlation with the health degree. Set the output value of the relationship;

When the target interval of the battery temperature is included in the mapping relationship, the current information in the charging strategy corresponding to at least one set value interval of the battery temperature is a fixed current value or a range of current values, or is smaller than the set value of the target interval. The current value in the charging strategy in the interval is positively correlated with the battery temperature, and the current value in the charging strategy in the set value interval greater than the target interval is negatively correlated with the battery temperature; the characterizing value of the target interval is each set value. The middle value among the characteristic values of the interval.

7. The intelligent charging method according to claim 1, wherein,

The determining of the charging strategy according to the current value of the state characterization parameter includes:

The current value is determined according to the current value of the state characterization parameter and the setting relationship, and the current value is used as the charging strategy.

8. The intelligent charging method according to claim 7, wherein,

When the state characterization parameter includes a voltage, the voltage is negatively correlated with the current value;

When the state characterization parameter includes a degree of health, the degree of health is positively correlated with the current value;

When the state characterizing parameter includes the battery temperature, when the battery temperature is in the target interval in the set value interval, the determined current value is greater than when the battery temperature is in the set value interval other than the target interval. Determined current value.

9. An intelligent charging device, comprising:

a detection module, configured to detect the current value of the state representation parameter of the battery when the battery is in a charging state;

a first determining module, configured to determine a charging strategy according to the current value of the state characterization parameter;

10. The intelligent charging device according to claim 9, wherein,

The state characterization parameter is one or a combination of the following:

Voltage, health, battery temperature.

11. The intelligent charging device according to claim 9, wherein,

The charging current conforming to the charging strategy is specifically:

12. The intelligent charging device according to claim 9, wherein,

The first determining module is further configured to use the following method to determine the charging strategy according to the current value of the state characterization parameter:

determining a target state characterization parameter, the target state characterization parameter being a state characterization parameter corresponding to the set value interval in the mapping relationship;

determining the set value interval to which the current value of the state representation parameter belongs, and querying the charging strategy corresponding to the set value interval according to the mapping relationship;

The mapping relationship is a one-to-one mapping relationship between the set value interval of the at least one state representation parameter and the charging strategy.

13. The intelligent charging device according to claim 12, wherein,

14. The intelligent charging device according to claim 12 or 13, wherein,

When the mapping relationship includes a set value interval of the voltage, the current value in the charging strategy corresponding to at least one set value interval of the voltage is a fixed current value, a current value range, or a setting that is negatively correlated with the voltage the output value of the relation;

When the mapping relationship includes the set value interval of the health degree, the current value in the charging strategy corresponding to at least one set value interval of the health degree is a fixed current value, a current value range, or a positive correlation with the health degree. Set the output value of the relationship;

15. The intelligent charging device according to claim 9, wherein,

The device also includes:

16. The intelligent charging device according to claim 15, wherein,

17. An intelligent charging device, comprising:

processor;

memory for storing processor-executable instructions;

wherein the processor is configured to perform the method of any one of claims 1-8.

18. A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of a mobile terminal, enabling the mobile terminal to execute the method described in any one of claims 1 to 8 method.